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J. W. EVANS.

Ore Amalgamator.

Patented June 3, 1856.

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JAMES W. EVANS, OF NEW YORK, N. Y.

AMALGAMATOR.

Specification of Letters Patent No. 15,037, dated June 3, 1856.

To all whom 2'25 may concern Be itknown that I, JAMES W. EvANs, of the city, county, and State of New York, have invented certain new and useful Improvements in Machinery for Amalgamating Quicksilver with the Ores of Gold or other Ores; and I do hereby declare the following to be a full description of the same.

The nature of my invention consists in the use of the combination of the cradle or rocker, with an agitator or rake, the said cradle having an inverted siphon feed and discharge pipe connected with the lowest point of the rocker, so that as the wash of the crusher is carried into the cradle it must pass directly in contact with the quicksilver and agitator, before it can find its outlet through the discharge pipe. Butto describe my invention more particularly I will refer to the accompanying drawings forming a part of this specification the same letters of reference wherever they occur referring to like parts.

Figure 1, is a cut section of the machine through'the line 00, :20, Fig. 3. Fig. 2, is a side elevation of the machine, showing the rocker as having been rocked forward. Fig. 3, is a transverse cut section of the machine through the line m 02 Fig. 1.

Letter A, is the frame upon which the machine is supported, and B, is the rocker, having trunnions C, C, at each side of it for the purpose of supporting it in the boxes cf, of the frame, and also to allow it to rock thereon. This rocker is made of cast metal, and may be made as an entire casting, or in half sections and bolted together in any suitable way to prevent its leakage.

Attached to each side of the rocker at its lowest point are the feed pipe and discharge pipe D, and E. These are elevated so as to have their points of entrance and discharge as high as the ends of the rocker, though the mouth of the feed pipe as a general thing is better to be higher than the discharge pipe for the purpose of overcoming the pressure in the rocker and force the liquid wash of the crusher into the trunk of the rocker.

Letter F, is a cap to the rocker having standards or frames G, elevated thereon for supporting in suitable boxes the journals of the rake or agitator rod or bar I-I. Upon the lower end of this rod or bar is secured a series of fiat teeth J. The object of this is to give strength to the teeth in passing backward and forward through the mass of ore and quicksilver in the rocker.

Letter K, is a connecting rod attached to the head of the rake bar at one end and at the other end to any stationary part of the frame of the machine. The object of this is to hold the head of the rake bar in. a fixed position, while its axis and lower end is being thrown backward (or forward as the case may be) as the body of the rocker is rocked forward (or backward as the case may be) by means of a connecting rod L, attached to the upper side of the rocker toe, and any suitable crank motion for giving a vibratory or rocking motion.

It will be obvious from this arrangement of the centers of motion of the rake bar and rocker that a most perfect compound agitating motion is kept up in the rocker to form the amalgum of the ore with the quick silver, and at the same time an easy and cheap application of the power to produce it. For the cleaning out or discharge of the amalgam from the rocker a suitable manhole is made in the side of the rocker.

Having now described my invention and its construction I will proceed to state what I claim and desire to secure by Letters Patent of the United States.

What I claim is The use of the rake supported and operated as set forth, in combination with the rocker supported and operated as set forth, whereby a compound agitating motion is obtained for the purposes hereinbefore de scribed.

JAMES W. EVANS.

Witnesses:

R. NowLEY, V. L. BARRITT. 

